#!/bin/bash
GW=`route  -n | perl -e 'while(<>) { if(/^0.0.0.0[\s]+([\S]+)[\s]+0.0.0.0/) { print $1 } }'`


route del default

if [ ! -z "$GW" ] ;
then 
route add VPN_SERVER_IP gw $GW
else
route add VPN_SERVER_IP gw LOCAL_GATEWAY_IP
fi

route add default gw 192.168.69.1 dev tap0